Rod-coupling.



nm nU 9 l 2 2 .L P E s D E T N E T A u.. .L w. Hume. TNM RIM .0L WP@ NUu BOF KON www .Rm T n P.

110 MODEL.

' l m l nl. y

witnesses v VUNiTED Sfrarnsl Patented September 22, 1903.

'THOMAS w. Knivwo'ajrnr, or ninemsn iowa'.

aon-ooUPLnNeQ SPEGIFICATION forming part of Letters EatentNo. 739,548, dated September 22, 1903.

@pumas sied mail e, iene.

To all whom t may concern:

Be it known that I, THOMAS W. KEN- WORTHY, a citizen of the United States, residing at Richland, in the county of Keokuk and State of Iowa, have invented certain new and useful Improvements in Rod-Couplings, of which the following is a specification. A

In the operation of windmills it is desirabie at times to disconnect the pump from the windengine either to permit manual operation of the pump or for other cause. Y

This invention provides aY simple and effective means to admitof the coupling and uucoupling of the pump-rod from the mill at a moments notice, same consisting, essentially, of a lock-pin slidably mounted in a peculiar manner and a cam-lever cooperating therewith for moving the lock-pin in and out and holding it in place in either position.

For a full description of the invention and the merits thereof and also to acquire a knowledge of the details of construction of the means for effecting the result reference is to be had to the following description and drawings hereto attached.

While the essential and characteristic features of the invention are susceptible of modification, still the preferredembodiinent of the invention isillnstrated in the accompanying drawings, in which- Figure lis a perspective view of a rod-coupling embodying the invention. Fig. 2 isalongitudinal section showing the relation of the parts when the pump-rod is released. Fig. 3 is a view similar to Fig. 2, showing the position of the parts when the pump-rod is coupled.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

The pump-rod is indicated atpl and the rod from the windmill at 2. A box d is secured to an end of one of the rods, preferably to the mill-rod 2, and consists of a casting adapted to receive the end of pump-rod l, same being secured thereto by a lock pin e, slidably mounted in an offstanding lug 5, provided at a side of box 3. Openings are formed'in opposite sides of box 3 in coincident relation for reception of end portions of lock-pin 4, so as to support' same at opposite sides of rod l.

Serial No. 146,515. (No model.)

A3, and its `upper side is grooved to form a seat in which-head 6 of lockpin 4 is slidably mounted. Y f

An operating-lever 8 cooperates with lockpin i to eect a sliding movement thereof in each direction and is pivotally connected to box or casting 3, being mounted upon bearing 9, projected laterally from said box, and having av threaded opening to receive a machine-screw or like fastening 10, by means of which operating-lever 8 is held in place upon the bearingand is adapted to be tightened, so as to compensate for Wear and prevent a too free movement of said operating-lever.v The pivotal end of the operating-lever is circularly enlarged and provided with a cam 11, having interlocking connection with lock-pin .tto eectsliding movement thereof as the operating-lever is turned upon its bearing. In the preferable construction the cam 1l is a fin or ange and enters cam-notch 7. The parts are soproportioned that when lever 8 is thrown to oneside the lock-pin 4 is moved outward and when thrown to the opposite side said lockpin is moved inward. The operating-lever is limited in its movement in each I direction by contact with lug 5. The weight of the outer end of lever 8 is sufficient to hold it in the required position and prevent casual displacement of lock-.pin e. I

The coupling is susceptible of use Iwherever it may be required to connect two rods or like parts, and the rod to be inserted in box 3 is apertured to receive lock-pin 4 and when insorted into said box is secured by operatinglever 8 to project lock-pin e through the opening thereof. To release the rod coupled to part 3, lever 8 is thrown in the opposite direction, thereby withdrawing the lock-pin and permitting separation of the parts, as will be readily comprehended.

Havingthus described the invention, what is claimed as new is-- A l'. In a rod-coupling, a slidably-mounted lock-pin, and an operating-lever provided IOO with a spi ral cam portion having interiockin g p connection with said lock-pin and adapted to and having a spiral cam for cooperation with the lock-pin to eect a sliding movement thereof, substantially as specified.

4. In a rod-coupling, a box having an 0E- standing lug provided in one side with a seat, a lock-pin adapted to be projected across said box and provided with a head slidably mounted in the seat of said lug, and an operatinglever pivoted to said boX and having a spiral cam portion cooperating with the head of said lock-pin to eect sliding movement thereof, substantially as described.

5. The herein-described rodconpling comprising a box `having openings in opposite sides in coincident relation and having an offstanding lug provided in its upper side with a seat, a lock-pin havingits outer edge notched and made angular and slidably mounted in the seat of said lug, and an operating-lever provided with a spiral cam-fiange for coperation with the notched head of the lock-pin to effect sliding movement thereof, substantially as and for the purpose set forth.

In testimony whereof I affix my signature in presence of two Witnesses.

THOMAS W. KEN WORTIIY.

Witnesses:

D. J. JAMES, W. A. BRADY.

in. Si 

